Used face masks could find new life in stronger concrete
Over the past couple of years, disposable face masks have become a very plentiful form of garbage. There may actually be a use for them, however, as recent research shows that they could strengthen concrete when added to it.Previous studies have indicated that concrete is less prone to crack when tiny reinforcing fibers are mixed into it before it's poured. With that fact in mind, scientists at Washington State University wondered if the polypropylene or polyester fabric in discarded face masks could be a source of those…